Ashcroft B-Series NEMA 7/9 Pressure Switch

Ashcroft B-Series NEMA 7/9 pressure switches are designed for pressure control in virtually all industry and OEM applications and is used throughout general process and industrial markets globally due to the switch’s…

CategoryProcess Instrumentation
  • Quoted to your quantity
  • Documentation on request
  • International delivery

Product Overview

Ashcroft B-Series NEMA 7/9 pressure switches are designed for pressure control in virtually all industry and OEM applications and is used throughout general process and industrial markets globally due to the switch’s reliability, performance and safety.

The Ashcroft B-Series pressure switch has been designed to be customised as an ideal solution for this type of pressure measurement.

Ashcroft B-Series NEMA 7/9 Pressure Switch – Applications

  • Offshore oil rigs
  • Chemical and petrochemical plants
  • Pulp and papermills
  • Steel mills
  • Power plants
  • Water and sewage-treatment plants
  • Other corrosive environments

The Ashcroft B-Series pressure switch should ideally be used in temperatures ranging from –19 to +65°C.

Ashcroft B-Series NEMA 7/9 Pressure Switch – Features

  • Adjustable setpoints 15-100% of range
  • Fixed or limited adjustable deadband
  • Wide selection of switch elements
  • Explosion proof enclosure provides uncompromising protection
  • Special designs for NACE & fire applications
  • SIL 3 Capable (B and D series only)

ASHCROFT B-Series NEMA 7/9 – How To Order

Here is a typical ordering example for an Ashcroft B-Series NEMA 7/9 pressure switch – for technical support, specification and sales contact our team.

Ashcroft Switch B4 20 B XPK 600#

  • Enclosure : Pressure switch, Type 400, watertight enclosure meets NEMA 3, 4, 4X, 13 and IP66 requirements. (B4)
  • Switch Element Selection – UL/CSA Listed SPDT : Narrow deadband ac, 15A – 125/250 Vac. Estimated dc rating, 0.4A, 120 Vdc (not UL listed). (20)
  • Actuator Seal : Buna N (B)
  • Options: Pilot Light(s) Top Mounted (XPK)
  • Switch Range : 600 psi (600#)

Ashcroft

Watch how Ashcroft pressure gauges and temperature instruments protect people in all industries and every environment.

Ashcroft & the Water Industry

Ashcroft gauges monitor pressure in filtration, flow and level applications including pumps, control systems, filters and heat exchangers – providing process pressure measurement for hydrostatic pressure, filter monitoring or regulating flow and deionized water.

Ashcroft Gauges – Instrumentation For Water & Waste Water Treatment Industries

Image : Mott MacDonald

Hazardous Areas

Hazardous area (ATEX & IECEx Certified) flameproof pressure gauges are available for potentially explosive atmospheres – T&D’s CompEX Certificated Sales Team supply worldwide oil, gas and petrochem projects, call us. ➡ Did you know? T&D distribute Water, Gas & Heat Meters from Itron, Elster and Kamstrup : visit our Metering section.

Technical Specifications

CategoryProcess Instrumentation
Ashcroft Model NumberAshcroft B-Series NEMA 7/9
SetpointFactory set or field adjustable
Setpoint Repeatability±1% of full range (Additional setpoint shift of ±1% of range per 50 °F from initial setpoint set at 70 °F typical)
DiaphragmBuna N, Viton, Teflon, SS, Monel
Enclosure MaterialEpoxy coated aluminum (standard) Optional: 316 stainless steel (NEMA 7/9 only)
Enclosure RatingB4/Hydraulic: NEMA 4X, IP66 B7: NEMA 7/9, IP66
Pressure Connection1⁄4 NPT Female (standard) Optional: 1⁄2 NPT Female , 1⁄4 NPT Female & 1⁄2 NPT Male combo
Electrical OutputSPDT or DPDT
Electrical Termination3⁄4 NPT Female (standard) Optional: 1⁄2 NPT Female
Ambient Temperature Range–20°F to 150°F (–19 °C to 65 °C) All units calibrated at 70 °F
Process Temperature0 °F to 150 °F (Buna N or Teflon diaphragm) 20 °F to 300 °F (Viton diaphragm) 0°F to 300°F (SS or Monel diaphragm)
Pressure RangesPressure: Vac-3000# Differential: 0-600#D Hydraulic: 1000-7500#
ApprovalsUL E34743 (B4/D4), E38812 (B7/D7) CSA: 55541 ATEX: Sira 02ATEX1391X (B7/D7 with XCN) IECEx SIR 14.0077X FM: Limit Contol and Steam Limit Control

Request Information About This Product

Tell us your quantity and requirements — we reply within one business day.

Related Products

Have a product requirement?

Share your specifications and quantities. Our team will review your request and come back with sourcing options and a quotation.